Optical characterization of new borate glass doped with titanium oxide

In this paper, the possibility of color controlling anodic titanium oxide by changing anodizing conditions of titanium in an ethanol-based electrolyte is demonstrated. Colored anodic titanium oxide was fabricated in an ethanol-based electrolyte containing 0.3 M ammonium fluoride and various amounts of deionized water (2, 3.5, 5, or 10 vol%), at voltages that varied from 30 to 60 V and at a constant anodization temperature of 20 °C. Morphological characterization of oxide layers was established with the use of a scanning electron microscope. Optical characterization was determined by measuring diffusion reflectance and calculating theoretical colors. The resulting anodic oxides in all tested conditions had nanotubular morphology and a thickness of up to hundreds of nanometers. For electrolytes with 3.5, 5, and 10 vol% water content, the anodic oxide layer thickness increased with the applied potential increase. The anodic titanium oxide nanotube diameters and the oxide thickness of samples produced in an electrolyte with 2 vol% water content were independent of applied voltage and remained constant within the error range of all tested potentials. Moreover, the color of anodic titanium oxide produced in an electrolyte with 2 vol% of water was blue and was independent from applied voltage, while the color of samples from other electrolyte compositions changed with applied voltage. For samples produced in selected conditions, iridescence was observed. It was proposed that the observed structural color of anodic titanium oxide results from the synergy effect of nanotube diameter and oxide thickness.

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Optical characterization of vanadium–titanium oxide films

Thin Solid Films ◽

10.1016/j.tsf.2007.05.096 ◽

2008 ◽

Vol 516 (14) ◽

pp. 4563-4567 ◽

Cited By ~ 17

Author(s):

Hiroshi Kakiuchida ◽

Ping Jin ◽

Masato Tazawa

Keyword(s):

Titanium Oxide ◽

Oxide Films ◽

Optical Characterization ◽

Vanadium Titanium ◽

Titanium Oxide Films

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Optical characterization of tandem absorber/reflector systems based on titanium oxide–carbon coatings

Solar Energy Materials and Solar Cells ◽

10.1016/j.solmat.2007.04.005 ◽

2007 ◽

Vol 91 (15-16) ◽

pp. 1421-1425 ◽

Cited By ~ 28

Author(s):

M.E. Rincón ◽

J.D. Molina ◽

M. Sánchez ◽

C. Arancibia ◽

E. García

Keyword(s):

Titanium Oxide ◽

Optical Characterization ◽

Carbon Coatings

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Optical Characterization of Erbium Doped Sodium Borate Glass

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.622-623.191 ◽

2012 ◽

Vol 622-623 ◽

pp. 191-194

Author(s):

Mardhiah Abdullah ◽

K. Azman ◽

H. Azhan ◽

W.A.W. Razali

Keyword(s):

Optical Properties ◽

Borate Glass ◽

Optical Characterization ◽

Sodium Borate ◽

Potential Host ◽

Erbium Doped ◽

Sodium Borate Glass

Borate glass has been identified as one of the potential host for optical application. In this work, a serie of borate glass of the system (80-x) B203–10Na2O- 10ZnO- x Er2O3(x= 0.5 -1.5 mol %) has been prepared by melt quenched technique. Their optical properties by mean of the UV-VIS-IR and photoluminescence have been identified. From the result, there are 5 significant absorption peaks that corresponds to 487 nm, 750 nm, 820 nm,894 nm and 979 nm wavelength have been observed. Meanwhile there are six significant emission peaks have been observed which corresponds to 401 nm, 434 nm, 481.5 nm, 526 nm, 556 nm and 700 nm wavelength. Thus, from the photoluminescence results, the green, yellow and red spectrum can be expected. Some other results will be analysed and discussed.

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